Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Operating Segments (Narrative) (Details)

v3.19.1
Operating Segments (Narrative) (Details)
12 Months Ended
Dec. 31, 2018
PV Plants [Member]  
Disclosure of geographical areas [line items]  
Production capacity Approximately 22.6MWp aggregate installed capacity of photovoltaic power plants in Italy, approximately 7.9MWp aggregate installed capacity of photovoltaic power plants in Spain and a photovoltaic power plant of approximately 9 MWp installed capacity in Israel.
Dorad Energy Ltd [Member]  
Disclosure of geographical areas [line items]  
Proportion of ownership interest 9.375%
Production capacity Production capacity of approximately 850 MW, located south of Ashkelon, Israel.
Anaerobic digestion plants [Member]  
Disclosure of geographical areas [line items]  
Production capacity 51% of Groen Gas Goor B.V. and of Groen Gas Oude-Tonge B.V., project companies developing and operating anaerobic digestion plants with a green gas production capacity of approximately 375 Nm3/h, in Goor, the Netherlands and 475 Nm3/h, in Oude Tonge, the Netherlands, respectively.
Anaerobic digestion plants [Member]  
Disclosure of geographical areas [line items]  
Production capacity 75% of a project to construct a 156 MW pumped storage hydro power plant in the Manara Cliff, Israel.